CN101816867A - Impulse injection control method in bag-type duster - Google Patents
Impulse injection control method in bag-type duster Download PDFInfo
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- CN101816867A CN101816867A CN201010100467.5A CN201010100467A CN101816867A CN 101816867 A CN101816867 A CN 101816867A CN 201010100467 A CN201010100467 A CN 201010100467A CN 101816867 A CN101816867 A CN 101816867A
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- pulse valve
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- impulse
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000002347 injection Methods 0.000 title abstract 4
- 239000007924 injection Substances 0.000 title abstract 4
- 230000009471 action Effects 0.000 claims abstract description 19
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000000428 dust Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses an impulse injection control method in a bag-type duster, comprising the following steps of: firstly, defining a plurality of output points on an output module of a main control cabinet corresponding to impulse valves, wherein the number of the output points of the impulse valve is the same with the number of the impulse valves of the upper end of each duster bin, corresponding function blocks are prepared in a program according to the injection time of the impulse valves and action interval time between the two impulse valves, and the program can conveniently and optionally transfer the function blocks of the impulse valves; and simultaneously controlling DC24V positive and negative poles of the impulse valves on a circuit. By controlling the DC24V positive and negative poles of the impulse valves, the impulse injection control method is more convenient to control, has more reliable performance, can sufficiently simplify the control circuit, saves the materials of modules, relays, cables, and the like and reduces use cost.
Description
Technical field
The present invention relates to a kind of sack cleaner that arrives, relate in particular to pulse jet control method in a kind of sack cleaner.
Background technology
Along with country is more and more higher to environmental requirement, the application of sack cleaner also more and more widely, the filter area of sack cleaner is also increasing, the pulse valve quantity of cloth bag winding-up usefulness also becomes more and more in the sack cleaner, general filter area is at the sack cleaner more than 5000, all more than 100, filter area is big more for its pulse valve quantity, and it is many more that the quantity of pulse valve also becomes.The operation principle of sack cleaner is: enter into each bin ash bucket of sack cleaner at ash-laden gas after, under the guiding of ash bucket flow guide system, big dust particle directly falls into ash bucket after separating, all the other dust enter the casing filtering area with air-flow, and the clean flue gas after the filtration sees through filter bag and discharges through upper box, lift valve, exhaust duct.Along with the carrying out of filtering operating mode, when filter bag surface laying dust reaches a certain amount of, pulse jet system in the sack cleaner closes lift valve by setup program by modes such as differential pressure, timing or manual controls, and open electromagnetic impulse valve and jet, compressed air sprays by nozzle, pours in filter bag and makes the filter bag radial deformation, shakes off the dust on the filter bag, fall into the dust of ash bucket, regularly discharge by defeated grey equipment.The pulse jet control method is mainly made and is adopted manual and automatic dual mode in the existing sack cleaner, also can change mutually between the two.Automatically control employing pressure reduction (fixed resistance) and regularly two kinds of control modes, two kinds of control modes also can be changed automatically.In the pressure reduction control mode: test point is separately positioned on the import and export house steward place of sack cleaner, when the pressure difference that reaches setting (as 1200Pa), each deduster bin of sack cleaner carries out pulse jetting deashing successively, the deashing state adopts off-line locellus deashing successively, and the deashing program implementation is directly controlled by the master control cabinet.The master control cabinet is PLC low-voltage cabinet or DCS switch board.In the timing controlled mode: selector switch is selected " automatically " " regularly " position, after system satisfies the timing controlled condition, close the lift valve on the deduster bin earlier, deduster bin deashing indicator lamp is bright, begins winding-up, then the pulse valve on this deduster bin begins action one by one, pulse valve actuation time is 0.1-0.2 second, and be 3-8 second the blanking time of pulse valve action, until last pulse valve release, winding-up is opened lift valve, this deduster bin end-of-job after finishing.Next deduster bin lift valve was closed at the interval in about 15 seconds ... (repeating the working procedure of a deduster bin) finishes successively that the deashing work of all deduster bins is laggard goes into following one-period.Because used pulse valve generally all has hundreds of individual on the sack cleaner, the deduster bin is many more, and pulse valve quantity is also just many more.Above-mentioned control mode is by PLC low-voltage cabinet or DCS switch board control point direct command action output, in order to save the output module at PLC low-voltage cabinet or DCS switch board control point, utilize auxiliary reclay to switch mutually and do, problem such as above-mentioned two kinds of control modes can cause all that the pulse jet system line is too fat to move, cable cost is higher, making and workmen's workload are bigger.Also have part control to adopt the control mode of on-the-spot I/O, but on-the-spot running environment is comparatively abominable, dust-laden and corrosive gas are more.
Summary of the invention
Technical problem to be solved by this invention is: the pulse jet control method in the sack cleaner of providing a kind of and control conveniently, circuit being simplified.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: pulse jet control method in the sack cleaner, comprise: at first on the output module of master control cabinet, define and the mutual corresponding some output points of pulse valve, make the output of pulse valve count identical with the pulse valve quantity of each deduster bin upper end, blanking time is carried out the function corresponding piece in action between winding-up time of pulse valve and two pulse valves in program, make things convenient for program can arbitrarily transfer this pulse valve functional block; The DC24V positive and negative polarities of control impuls valve simultaneously on the line, when needs to which deduster bin are jetted, just give the DC24V negative pole of the pulse valve on this deduster bin logical earlier, the output point of program is the DC24V positive pole of pulse valve, then by the corresponding pulse valve functional block of routine call, according to the program in the pulse valve functional block, action pulse valve one by one, action blanking time between winding-up time that can the regulating impulse valve and two pulse valves, till one direct acting finishes, disconnect the DC24V negative pole of this bin pulse valve then, after the winding-up action of this deduster bin is finished, disconnect the negative pole of the pulse valve of this deduster bin upper end; When needs were jetted to next deduster bin, the same DC24V negative pole that only needs the pulse valve of this deduster bin upper end of connection earlier repeated above-mentioned action then.
In order to solve the problems of the technologies described above better, further technical scheme of the present invention is: described master control cabinet is PLC low-voltage cabinet or DCS switch board.
Advantage of the present invention is: pulse jet system and control method thereof in the above-mentioned sack cleaner, DC24V positive and negative polarities by the paired pulses valve are controlled, control convenient, performance is more reliable, can fully simplify control circuit, save materials such as module, relay and cable, reduced use cost.
The specific embodiment
Below by specific embodiment the present invention is specifically described.
Pulse jet control method in the sack cleaner, comprise: at first on the output module of master control cabinet, define and the mutual corresponding some output points (described master control cabinet is PLC low-voltage cabinet or DCS switch board) of pulse valve, make the output of pulse valve count identical with the pulse valve quantity of each deduster bin upper end, blanking time is carried out the function corresponding piece in action between winding-up time of pulse valve and two pulse valves in program, make things convenient for program can arbitrarily transfer this pulse valve functional block; The DC24V positive and negative polarities of control impuls valve simultaneously on the line, when needs to which deduster bin are jetted, just give the DC24V negative pole of the pulse valve on this deduster bin logical earlier, the output point of program is the DC24V positive pole of pulse valve, then by the corresponding pulse valve functional block of routine call, according to the program in the pulse valve functional block, action pulse valve one by one, action blanking time between winding-up time that can the regulating impulse valve and two pulse valves, till one direct acting finishes, disconnect the DC24V negative pole of this bin pulse valve then, after the winding-up action of this deduster bin is finished, disconnect the negative pole of the pulse valve of this deduster bin upper end; When needs were jetted to next deduster bin, the same DC24V negative pole that only needs the pulse valve of this deduster bin upper end of connection earlier repeated above-mentioned action then.The control that pulse valve just can basis requires to control like this, and native system can be controlled a plurality of deduster bins simultaneously and jet, and is not limited to single deduster bin and moves successively.DC24V positive and negative polarities by the paired pulses valve are controlled, and control conveniently, and performance is more reliable, can fully simplify control circuit, has saved materials such as module, relay and cable, has reduced use cost.
Claims (2)
1. pulse jet control method in the sack cleaner, it is characterized in that: comprising: at first on the output module of master control cabinet, define and the mutual corresponding some output points of pulse valve, make the output of pulse valve count identical with the pulse valve quantity of each deduster bin upper end, blanking time is carried out the function corresponding piece in action between winding-up time of pulse valve and two pulse valves in program, make things convenient for program can arbitrarily transfer this pulse valve functional block; The DC24V positive and negative polarities of control impuls valve simultaneously on the line, when needs to which deduster bin are jetted, just give the DC24V negative pole of the pulse valve on this deduster bin logical earlier, the output point of program is the DC24V positive pole of pulse valve, then by the corresponding pulse valve functional block of routine call, according to the program in the pulse valve functional block, action pulse valve one by one, action blanking time between winding-up time that can the regulating impulse valve and two pulse valves, till one direct acting finishes, disconnect the DC24V negative pole of this bin pulse valve then, after the winding-up action of this deduster bin is finished, disconnect the negative pole of the pulse valve of this deduster bin upper end; When needs were jetted to next deduster bin, the same DC24V negative pole that only needs the pulse valve of this deduster bin upper end of connection earlier repeated above-mentioned action then.
2. according to pulse jet control method in the described sack cleaner of claim 1, it is characterized in that: described master control cabinet is PLC low-voltage cabinet or DCS switch board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010100467.5A CN101816867B (en) | 2010-01-25 | 2010-01-25 | Impulse injection control method in bag-type duster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010100467.5A CN101816867B (en) | 2010-01-25 | 2010-01-25 | Impulse injection control method in bag-type duster |
Publications (2)
| Publication Number | Publication Date |
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| CN101816867A true CN101816867A (en) | 2010-09-01 |
| CN101816867B CN101816867B (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010100467.5A Expired - Fee Related CN101816867B (en) | 2010-01-25 | 2010-01-25 | Impulse injection control method in bag-type duster |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363090A (en) * | 2011-09-16 | 2012-02-29 | 中冶南方工程技术有限公司 | Automatic control method for small-sized bag type dust remover |
| CN102430298A (en) * | 2011-09-16 | 2012-05-02 | 中冶南方工程技术有限公司 | Pulsed blowing ash-removal control system of large-scale bag-type deduster, and control method therefor |
| CN102908835A (en) * | 2012-10-26 | 2013-02-06 | 沈阳远大环境工程有限公司 | Multi-functional pulse-jet ash removal control device |
| CN105233588A (en) * | 2015-11-17 | 2016-01-13 | 光大环保技术研究院（深圳）有限公司 | Control system and method used for pulse dust removal of bag-type dust remover |
| CN110604976A (en) * | 2019-10-25 | 2019-12-24 | 济南大学 | Pulse dust removal control instrument of bag type dust collector |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB693352A (en) * | 1949-07-30 | 1953-07-01 | Power Gas Ltd | Improvements in or relating to electrical apparatus for controlling cyclic operationof multi-unit apparatus |
| DE2925128C2 (en) * | 1979-06-22 | 1982-10-28 | Mannesmann AG, 4000 Düsseldorf | Device for monitoring the closing and opening function of valves which are connected downstream of a compressed air reservoir in cleaning pulse lines of dedusting devices |
| CN1005246B (en) * | 1987-03-05 | 1989-09-27 | 劳动人事部劳动保护科学研究所 | Chambered air-stopping pulse blowing bag type dust collector |
| DE19539277A1 (en) * | 1995-10-21 | 1997-04-24 | Lurgi Lentjes Babcock Energie | Device and method for cleaning filter elements |
| CN2592254Y (en) * | 2003-01-06 | 2003-12-17 | 沈继平 | Combined-ash-removing off-line pulse bag type dust collector |
| CN101152616A (en) * | 2006-09-27 | 2008-04-02 | 上海电气集团股份有限公司 | Flue gas desulfurization control system of large coal-fired power plant |
| CN101491744B (en) * | 2008-01-21 | 2012-12-26 | 贵阳铝镁设计研究院有限公司 | Local control method of bag filter and used power distribution control cabinet |
| CN201375868Y (en) * | 2009-04-09 | 2010-01-06 | 唐山盾石电气有限责任公司 | Dustproof ventilation device used for PLC control cabinet |
-
2010
- 2010-01-25 CN CN201010100467.5A patent/CN101816867B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363090A (en) * | 2011-09-16 | 2012-02-29 | 中冶南方工程技术有限公司 | Automatic control method for small-sized bag type dust remover |
| CN102430298A (en) * | 2011-09-16 | 2012-05-02 | 中冶南方工程技术有限公司 | Pulsed blowing ash-removal control system of large-scale bag-type deduster, and control method therefor |
| CN102363090B (en) * | 2011-09-16 | 2013-11-20 | 中冶南方工程技术有限公司 | Automatic control method for small-sized bag type dust remover |
| CN102908835A (en) * | 2012-10-26 | 2013-02-06 | 沈阳远大环境工程有限公司 | Multi-functional pulse-jet ash removal control device |
| CN102908835B (en) * | 2012-10-26 | 2014-07-30 | 沈阳远大环境工程有限公司 | Multi-functional pulse-jet ash removal control device |
| CN105233588A (en) * | 2015-11-17 | 2016-01-13 | 光大环保技术研究院（深圳）有限公司 | Control system and method used for pulse dust removal of bag-type dust remover |
| CN105233588B (en) * | 2015-11-17 | 2017-07-28 | 光大环保技术研究院（深圳）有限公司 | Control system and control method for sack cleaner pulse dust cleaning |
| CN110604976A (en) * | 2019-10-25 | 2019-12-24 | 济南大学 | Pulse dust removal control instrument of bag type dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101816867B (en) | 2012-06-20 |
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Effective date of registration: 20190102 Address after: 215600 Donglai Jiangqiao, Yangshe Town, Zhangjiagang City, Jiangsu Province (in Zhangjiagang East China Marine Valve Manufacturing Co., Ltd.) Patentee after: Jiangsu Xinren Environmental Protection Technology Co.,Ltd. Address before: 215600 No. 66 Zhenxing Road, Zhangjiagang Economic Development Zone, Jiangsu Province Patentee before: JIANGSU NEW ENVIRONMENTAL Corp. |
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Granted publication date: 20120620 |
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